/* 基本重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background-color: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.1);
    width: 300px;
    text-align: center;
}

.login-container h2 {
    margin-bottom: 1.5rem;
    color: #333;
}

.input-group {
    margin-bottom: 1rem;
    text-align: left;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #666;
}

.input-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.input-group input:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}

button {
    width: 100%;
    padding: 0.75rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button:hover {
    background-color: #0056b3;
}

.signup-link {
    margin-top: 1rem;
    font-size: 0.9rem;
}

.signup-link a {
    color: #007bff;
    text-decoration: none;
}

.signup-link a:hover {
    text-decoration: underline;
}
/* 针对注册表单的特定样式 */
.input-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ccc;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.input-group select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0, 123, 255, 0.5);
}